EP1971890A1 - Method for operating an optical system and optical system - Google Patents
Method for operating an optical system and optical systemInfo
- Publication number
- EP1971890A1 EP1971890A1 EP06829347A EP06829347A EP1971890A1 EP 1971890 A1 EP1971890 A1 EP 1971890A1 EP 06829347 A EP06829347 A EP 06829347A EP 06829347 A EP06829347 A EP 06829347A EP 1971890 A1 EP1971890 A1 EP 1971890A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lens arrangement
- control signals
- motor
- setting
- optical system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/18—Arrangements with more than one light path, e.g. for comparing two specimens
- G02B21/20—Binocular arrangements
- G02B21/22—Stereoscopic arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/02—Objectives
- G02B21/025—Objectives with variable magnification
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/20—Surgical microscopes characterised by non-optical aspects
Definitions
- the invention relates to a method for operating an optical system and an optical system.
- Optical systems for example stereomicroscopes, are used in a wide variety of applications to generate a spatial image of an examination object.
- such optical systems are used in medical surgical microscopes to view an operating area.
- the spatial image of the examination object is generated using the stereomicroscope, which is a representative of the device class of reflected light microscopes.
- the examination object is illuminated from the outside.
- Two separate beam paths are usually formed, which in turn are each equipped with an associated lens system.
- the optical axes of the two beam paths run through a converging lens arrangement upstream of the lens systems in the direction of the examination object.
- Both the lens systems and the converging lens arrangement can comprise a plurality of optical lenses.
- the various optical lenses are used to set a focus and a zoom factor of the stereomicroscope. For this purpose, the lenses are moved individually or in groups along the respectively assigned optical axis.
- the shifting of optical elements for focus adjustment or for setting the zoom factor can be carried out with the aid of motor-driven adjustment devices which shift the optical element into a desired position along the optical axis.
- motor-driven adjusting devices are provided with an actuating means, for example one that controls the voltage or Power supply control, operated by the user. As long as the user switches on the actuating means, the lens moves along the optical axis. The user stops this movement by switching off the actuating means.
- Document DE 103 23 629 A1 describes a traveling field linear motor with which optical elements, for example an optical lens, arranged in a sleeve can be displaced along the optical axis. This is achieved by means of a magnetic traveling field moving along the optical axis. The magnetic traveling field and thus also the shift positions of the optical elements can be adjusted very finely.
- the well-known Wanderfeld linear motor supports the miniaturization of optical systems.
- the object of the invention is to provide a method for operating an optical system with a microscope and an optical system in which the user-friendliness is improved, in particular with regard to simple operation and targeted positioning of the optical elements within an optical channel.
- This object is achieved according to the invention by a method for operating an optical system with a microscope according to independent claim 1 and an optical system with a microscope according to independent claim 11.
- the invention encompasses the idea of operating an optical system in such a way that, in response to a user input for changing a focus setting and / or a zoom factor of the microscope, a desired focus setting and / or a desired zoom factor is automatically generated with the aid of motor-driven adjustment devices are generated by, in response to the detected user input in a control device, control signals corresponding to stored default settings and converted into movements of the optical elements of the microscope with the aid of the respective motor-driven adjusting devices.
- the stored default settings include electronic information about positions of optical elements, in particular lenses, of the microscope for certain focus settings and / or zoom factors.
- the microscope can be automatically adjusted, depending on the detected user input, using the stored default settings so that a specific focus setting and / or a specific zoom factor is given.
- the default settings have been determined in advance for the optical system, for example using measurements on an optical bench, and stored in the form of electronic data.
- the user does not have to independently move the optical elements along the optical axis and search for an optimal positioning, as is provided in the prior art. Rather, the user merely specifies a desired focus setting and / or a desired zoom factor, whereupon the optical system automatically makes a focus / zoom factor setting taking into account the stored default settings. There is also no need to shift the lenses by hand.
- An expedient embodiment of the invention provides that a coarse focus adjustment is carried out when adjusting the focus setting, in that coarse control signals comprised by the control signals are generated in the control device and transmitted from the control device to the motor-driven adjusting device of the converging lens arrangement and the converging lens arrangement with the aid of the motor-driven Adjustment device of the converging lens arrangement is shifted according to the coarse control signals.
- coarse control signals comprised by the control signals are generated in the control device and transmitted from the control device to the motor-driven adjusting device of the converging lens arrangement and the converging lens arrangement with the aid of the motor-driven Adjustment device of the converging lens arrangement is shifted according to the coarse control signals.
- a fine focus setting is carried out by generating fine control signals comprised by the control signals in the control device and by the control device to the respective motor-driven adjustment device of the first lens arrangement in one or all beam paths are transmitted and the first lens arrangement is shifted in one or all beam paths with the aid of the respective motor-driven adjusting device in accordance with the fine control signals.
- the setting of the zoom factor is carried out by comprising the control signals
- Zoom control signals are generated in the control device and are transmitted from the control device to the respective motor-driven adjusting device of the second lens arrangement in one or all beam paths and the second lens arrangement is shifted in one or all beam paths with the aid of the respective motor-driven adjusting device in accordance with the zoom control signals.
- the scope of the electronic information to be stored for the preset data is minimized in that when the control signals for setting the focus setting and / or the zoom factor are generated in the control device, an interpolation between selected preset data of the stored ones Preset data is executed. Interpolation can also be used to carry out focus settings and / or settings of zoom factors for which the associated positioning of the lenses has not been measured in advance. A linear interpolation between the preset data used is usually carried out.
- the converging lens arrangement, the first lens arrangement and / or the second lens arrangement are displaced linearly during the displacement according to the control signals with the aid of the respective motor-driven adjusting device.
- a linear motor is preferably acted upon by the control signals to carry out the displacement.
- the examination object is spatially mapped onto several electronic storage media, each of which is assigned to a beam path.
- the optical beam paths can of course be made available directly to the viewer's eyes via so-called tubes.
- a preferred development of the invention provides that a respective zoom factor is set in the beam paths by the first lens arrangement, the second lens arrangement and / or the converging lens arrangement being displaced with the aid of the respective motor-driven adjustment device (s), whereby differentiate the zoom factors of the beam paths that can be set. In this way it is possible to generate an enlarged display of one of the channels on a monitor or a camera, whereas the other channel has a lower magnification, for example for the visual observation of the operator when the optical system is designed as a stereo microscope.
- the optical system preferably comprises a stereomicroscope.
- Motor-driven adjustment devices using a moving magnetic traveling field as described for example in document DE 103 23 629 A1, have proven to be particularly advantageous for an exact and finely graduated displacement of lenses in the microscope.
- FIG. 1 shows a schematic illustration of an optical system with a stereo microscope in plan view
- FIG. 2 shows a perspective illustration of optical lenses of the stereomicroscope in the optical system according to FIG. 1.
- FIG. 1 shows a schematic illustration of an optical system 1 with a stereomicroscope 2.
- Two beam paths 3, 4 are formed in the stereomicroscope 2.
- an examination object (not shown) represents) spatially mapped on video chips 5, 6 using the two beam paths 3, 4.
- the video chips 5, 6 serve as electronic memories for spatial imaging, so that image processing can then be carried out.
- a first and a second lens arrangement 3a, 3b; 4a, 4b arranged.
- the first and the second lens arrangement 3a, 3b; 4a, 4b each comprise one or more optical lenses.
- the optical lenses are held in a respective receptacle, which in turn can be displaced along the respective optical axis by means of motor-driven adjusting elements 7, 8, 9, 10.
- a collecting lens arrangement 11 is assigned to the two beam paths 3, 4 and is likewise held in a receptacle 12.
- the collecting lens arrangement 11 can be displaced in the receptacle 12 with the aid of a further adjusting member 13.
- the motor-driven adjusting elements 7, 8, 9, 10, 13 are coupled to a control device 20, so that control signals generated by the control device 20 can be transmitted to the motor-driven adjusting elements 7, 8, 9, 10, 13 in order to adjust the focus and / or to set a zoom factor of the stereomicroscope 2.
- the control device 20 in turn is connected to an input device 21 with which user inputs are recorded.
- the input device 21 is, for example, a touch panel or a keyboard, as is known in the context of control panels of devices.
- the motor-driven adjusting elements 7, 8, 9, 10, 13 can be rotary field-driven adjusting devices. Alternatively, the motor-driven adjusting elements 7, 8, 9, 10, 13 can be electromagnetic traveling field linear motors for moving the optical elements.
- Such an electromagnetic traveling field linear motor has an axially movable sliding sleeve which slides in a cladding tube and accommodates at least one axially polarized permanent magnet and the optical element or the optical elements.
- an arrangement of at least three coils is provided, which are wrapped around the cladding tube and can generate a magnetic traveling field by means of independent, variable current supply, which is guided and reinforced in a concentrated manner by magnetic backflow via a soft-magnetic outer tube and soft-magnetic rotor pole shoes.
- the three-phase traveling field is used for the axial movement of the permanent magnet and the one connected to it Sliding sleeve.
- the traveling field Through interaction with the permanent magnet, the traveling field generates self-holding forces, which lead to the strengthening of the rotor location and to the position stabilization of the optical elements by means of restoring forces.
- the use of electromagnetic traveling field linear motors as motor-driven adjusting devices according to the invention enables an extremely compact design of the optical system 1 according to the invention.
- the overall length of the stereomicroscope 2 is reduced in that not only the converging lens arrangement 11 is moved by means of the motor-driven adjusting element 13, but also the motor-driven adjusting device 3a, 4a for fine focus adjustment.
- a zoom factor of the stereomicroscope 2 is achieved by moving the second lens arrangement 3b, 4b.
- the second lens arrangements 3b, 4b can be set independently of one another, so that zoom factors which differ from one another can be set at a specific point in time in the two beam paths 3, 4.
- control signals corresponding to preset data are then generated in the control device 20 and are electronically stored in a memory device 22 connected to the control device 20 are.
- This is electronic information relating to the positioning of the first lens arrangement 3a, 4a and the second lens arrangement 3b, 4b in one of the two beam paths 3, 4 and / or the converging lens arrangement 11 for certain focus settings and / or zoom factors.
- control device 20 determines preset data for adjacent focus settings / zoom factors and linearly interpolates the information for generating the corresponding control signals.
- Fig. 2 shows a perspective view of optical lenses of the first and the second lens arrangement 3a, 4a; 3b, 4b of the stereomicroscope 20 in the optical system according to FIG. 1.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
- Lens Barrels (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06829347A EP1971890B1 (en) | 2005-12-08 | 2006-12-06 | Method for operating an optical system and optical system |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05026775A EP1795939A1 (en) | 2005-12-08 | 2005-12-08 | Optical system and method for operating an optical system |
EP06829347A EP1971890B1 (en) | 2005-12-08 | 2006-12-06 | Method for operating an optical system and optical system |
PCT/EP2006/011718 WO2007065660A1 (en) | 2005-12-08 | 2006-12-06 | Method for operating an optical system and optical system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1971890A1 true EP1971890A1 (en) | 2008-09-24 |
EP1971890B1 EP1971890B1 (en) | 2010-07-14 |
Family
ID=35929958
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05026775A Withdrawn EP1795939A1 (en) | 2005-12-08 | 2005-12-08 | Optical system and method for operating an optical system |
EP06829347A Not-in-force EP1971890B1 (en) | 2005-12-08 | 2006-12-06 | Method for operating an optical system and optical system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05026775A Withdrawn EP1795939A1 (en) | 2005-12-08 | 2005-12-08 | Optical system and method for operating an optical system |
Country Status (7)
Country | Link |
---|---|
US (1) | US8384994B2 (en) |
EP (2) | EP1795939A1 (en) |
JP (1) | JP5213722B2 (en) |
CN (1) | CN101365977B (en) |
AT (1) | ATE474244T1 (en) |
DE (1) | DE502006007453D1 (en) |
WO (1) | WO2007065660A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017083331A1 (en) * | 2015-11-09 | 2017-05-18 | Digital Surgicals Pte Ltd. | Personalized hand-eye coordinated digital stereo microscopic systems and methods |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6026016U (en) * | 1983-07-28 | 1985-02-22 | ユニオン光学株式会社 | Automatic focus movement device in surgical microscope |
JPH01180508A (en) * | 1988-01-12 | 1989-07-18 | Canon Inc | Variable power microscope |
US5266791A (en) * | 1991-10-17 | 1993-11-30 | Fuji Photo Optical Co., Ltd. | Autofocus binocular stereomicroscope |
US5307202A (en) * | 1993-01-13 | 1994-04-26 | Image Interpretation Systems Inc. | Soft copy port |
DE19541237B4 (en) * | 1994-11-12 | 2006-04-13 | Carl Zeiss | Pancratic magnification system |
JPH11150991A (en) * | 1997-11-18 | 1999-06-02 | Sony Corp | Stepping motor driving device |
DE19822256C2 (en) * | 1998-05-18 | 2002-07-11 | Zeiss Carl Jena Gmbh | Arrangement for direct control of the movement of a zoom system in a stereo microscope |
JP2001296467A (en) * | 2000-04-12 | 2001-10-26 | Olympus Optical Co Ltd | Automatic focus detecting device |
JP4461530B2 (en) * | 1999-11-17 | 2010-05-12 | 株式会社ニコン | Stereo microscope |
US6268957B1 (en) * | 2000-09-25 | 2001-07-31 | Rex A. Hoover | Computer controlled stereo microscopy |
DE10101624A1 (en) * | 2001-01-16 | 2002-07-18 | Zeiss Carl Jena Gmbh | Arrangement for focusing for microscopes |
ATE360227T1 (en) * | 2002-02-04 | 2007-05-15 | Zeiss Carl Surgical Gmbh | STEREO EXAMINATION SYSTEM AND STEREO IMAGING DEVICE AND METHOD FOR OPERATING SAME |
JP2003287686A (en) * | 2002-03-28 | 2003-10-10 | Pentax Corp | Microscope |
WO2004086595A1 (en) * | 2003-03-24 | 2004-10-07 | Technische Universität Berlin | Gliding field linear motor |
DE10323629A1 (en) | 2003-03-24 | 2004-10-14 | Technische Universität Berlin | Traveling wave linear motor |
JP2005017905A (en) * | 2003-06-27 | 2005-01-20 | Olympus Corp | Stereomicroscope |
US8027095B2 (en) * | 2005-10-11 | 2011-09-27 | Hand Held Products, Inc. | Control systems for adaptive lens |
JP4579842B2 (en) * | 2006-02-06 | 2010-11-10 | イーストマン コダック カンパニー | Imaging device |
-
2005
- 2005-12-08 EP EP05026775A patent/EP1795939A1/en not_active Withdrawn
-
2006
- 2006-12-06 CN CN2006800525003A patent/CN101365977B/en not_active Expired - Fee Related
- 2006-12-06 US US12/096,496 patent/US8384994B2/en not_active Expired - Fee Related
- 2006-12-06 EP EP06829347A patent/EP1971890B1/en not_active Not-in-force
- 2006-12-06 DE DE502006007453T patent/DE502006007453D1/en active Active
- 2006-12-06 JP JP2008543724A patent/JP5213722B2/en not_active Expired - Fee Related
- 2006-12-06 AT AT06829347T patent/ATE474244T1/en active
- 2006-12-06 WO PCT/EP2006/011718 patent/WO2007065660A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007065660A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE474244T1 (en) | 2010-07-15 |
US20090135475A1 (en) | 2009-05-28 |
US8384994B2 (en) | 2013-02-26 |
CN101365977A (en) | 2009-02-11 |
DE502006007453D1 (en) | 2010-08-26 |
JP5213722B2 (en) | 2013-06-19 |
EP1971890B1 (en) | 2010-07-14 |
JP2009518670A (en) | 2009-05-07 |
WO2007065660A1 (en) | 2007-06-14 |
CN101365977B (en) | 2013-05-22 |
EP1795939A1 (en) | 2007-06-13 |
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